Measuring the ins and outflows of estuaries

In coastal inlets such as bays and fjords, mixing of salt water and fresh water regulates many aspects of the local environment, from nutrient concentrations to oxygen levels and the composition of phytoplankton communities. ...

A close look at melting below Antarctica's largest ice shelf

The Antarctic Ice Sheet is the largest block of ice in the world. It covers an area four times the size of China and holds more than 60% of the world's fresh water. Where the ice sheet meets the ocean, it forms floating shelves ...

Climate change is making Arba'een pilgrimage dangerously hot

Around 20 million Shia Muslims participate in Arba'een, one of the world's largest religious gatherings. A new study projects climate change will make dangerous temperatures more common during Arba'een by the end of the 21st ...

Letting farmland recover may let air quality recover, too

The USDA's Conservation Reserve Program (CRP) promotes sustainable agricultural practices to improve habitat, soil and water quality. It may have an unintended benefit of improving air quality, too, according to new research ...

Amazon basin tree rings hold a record of the region's rainfall

The Amazon basin contains the world's largest rain forest, famous for its rich biodiversity and importance in the world's oxygen and carbon cycles. It also has an outsized influence on water cycles in South America and beyond. ...

Food deficits in Africa will grow in a warmer world

Africa has one of the world's fastest population growth rates. Growth models project the continent's current population of about 1.3 billion people will nearly double to 2.5 billion by 2050—and it's likely to keep growing ...

Glass microspheres aren't the answer for saving Arctic sea ice

A proposal to cover Arctic sea ice with layers of tiny hollow glass spheres about the thickness of one human hair would actually accelerate sea-ice loss and warm the climate rather than creating thick ice and lowering the ...

Rainy days on track to double in the Arctic by 2100

Today, more snow than rain falls in the Arctic, but this is expected to reverse by the end of the century. A new study shows the frequency of rainy days in the Arctic could roughly double by 2100.

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